The probability that a student is in seventh grade, given that he/she is dropped off by parents is <u>option C)</u> 0.22
<u>Step-by-step explanation</u>:
- The total probability of students in 7th grade = 0.56
- The probability of 7th grade students dropped by parents = 0.12
P(student is in 7th grade student is in seventh grade) = P(students in 7th grade) / P(7th grade students dropped by parents).
⇒ 0.12/0.56 
⇒ 0.22
 
        
                    
             
        
        
        
Answer:
(3x-2y)(3x+2y)
Step-by-step explanation:
Proof:
(3x-2y)(3x+2y)-use FOIL method (First, Outer, Inner, Last)
3x*3x+2y3x-2y3x-2y*2y
9x^2+0-4y^2
<u>9x^2-4y^2</u>
The answer is (3x-2y)(3x+2y).
 
        
             
        
        
        
Answer:
Step-by-step explanation:
4 goes into 64 sixteen times. 64/4 = 16 16 x 4 = 64
 
        
                    
             
        
        
        
So if x people were surveyed, 

 people owned a bike and 

  did not. 
The difference between them is 72:

 x-\frac{1}{8} [/tex] =72
so this means that 

 x=72
let's simplify:

 x=72
and divide by 3:

 x=24
and mupliply by 4:
x=96
so 96 people were surveyed
 
        
        
        
A pentago Which Is A Five Side Figure and a heptagon is a seven sided figure